Family members and officials claim that some victims were handcuffed with plastic zip-ties prior to being murdered in cold blood.

The British Special Air Service is facing accusations of war crimes following the exposure of an internal investigation into murderous rampages conducted across Afghanistan that were subsequently covered up.

The massive Royal Military Police investigation, called Operation Northmoor, has looked into hundreds of allegations of potentially illegal killings conducted between 2010 and 2013, but officials keen to avoid scandal have tried to bury the operation.